Explorer Wont Release Files After Using My Thumbnail Provider
问题 I've set up a thumbnail provider for a file type. The project is made with C# .NET 4.5 And I am running Windows x64 My provider successfully generates the thumbnail as expected and I can move, delete, copy, ect, the file. The issue of the locking seems to be caused by the file being placed in a folder. At that point, moving, deleting, ect, the folder all show the error, "File In Use". I have confirmed Explore locking the file using Sysinternal's Process Explorer, if you are familiar with it.